LinuxQuestions.org - Modem Not Detecting

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Modem Not Detecting

Hi Everyone,

I just loaded Red-Hat 8.0 with Gnome 2 and KDE3. All was going well, but when i tried to connect to the internet, Red Hat wouldn't detect my modem. Its a D-Link DFM-5601+ Internal Modem on COM2.

My PC is dual-booted with XP Home, so if worst comes to worst Ican always boot that up, but I would rather be able to acces it through RedHat :)

--Phillip Bryant
Linux :newbie:

Try this... Start kppp, Choose Setup -> Device ->
Under modem device choose /dev/ttiS1 (com2)
Select the modem tab and choose query modem. You should see information about your modem if it is installed corectly.

Hello People,

I'm having similar problem.s I've installed Redhat 9 and can't get it to detect my modem. On Windows I get the problem too. I've to get the system to detect a PCI modem enumerator first, then all goes well. But I don't know how to do that on linux. It an HCF modem.

Please help.

Go to www.linmodems.org and see if you can find your modem in the list... with special drivers, it should work ok.

UPDATE: Ok, I've got it configured, and it detects the modem, but it says 'Modem is Busy', even when I completely unplug the phone and reboot before trying.

Any ideas?

--Phillip

hey go to http://www.mbsi.ca
they have the drivers for ur modem (I presume that dlink uses a connexant chipset based modem )

I've found an appropriate driver for my modem at www.linuxant.com. And now its working fine. www.linmodems.org brought me there. Thanks mad_ady.
If your modem is using a connexant chipset you might also have luck, Batiu-Drami.

You're welcome....

I had the same problem with my modem (a Motorola SM56 PCI), and I solved it by switching to a cable modem! :)

i have the same problem.i m getting this "busy" message. the modem works fine on xp.
I have a motorola modem.
would linmodems.org fix it?

# Modem and connection troubleshooting
Modem NHFs
Modem HOWTO
Linmodems.org
Conexant/Rockwell modem HOWTO
The Unofficial PCTel Linux Driver page
I finaly got my PcTel hsp56 mr modem to work
Linux driver for Winmodems with Lucent Apollo (ISA) and Mars (PCI) chipsets
Lucent AMR modem listed as an Intel AC'97 - Smart Link Modems
The kppp Handbook
Dial-up Networking Configuration Using KDE's Kppp
Troubleshooting ISP Connection Problems
Connecting to AOL with Linux

# Compiling kernel modules
You will need to have installed:
1. The developmental packages (compiler)
2. The kernel source code that matches your running kernel
3. The module source or install code

Check out your system and see what's under the hood and see if you installed the stuff you need to do the job. Open an x terminal and type in this sequence of commands to see what kernel we are running and see if you have the kernel source installed:

Code:

[phil@uilleann phil]$ su -

Password: 

[root@uilleann root]# uname -r

2.4.18-3

I am running kernel version 2.4.18-3. Do I have the proper source code?

Code:

[root@uilleann root]# cd /usr/src

[root@uilleann src]# ls -alc

total 3

drwxr-xr-x    4 root    root          136 Jun 12 14:53 .

drwxr-xr-x  16 root    root          424 Jun  4 12:04 ..

lrwxrwxrwx    1 root    root          14 Jun  4 12:11 linux-2.4 -> linux-2.4.18-3

drwxr-xr-x  16 root    root          584 Jun  4 12:11 linux-2.4.18-3

drwxr-xr-x    7 root    root          168 Jun  4 12:08 redhat

[root@uilleann src]#

I do have the same kernel version source code installed in the directory /usr/src/linux-2.4.18-3 and there is a symbolic link named linux-2.4 pointing to it.

If you don't see something similiar to this (but in color), you will need to install the kernel source.

NOTE: I noticed that Red Hat didn't make the symbolic link /usr/src/linux that all of the INSTALL files that I have read mentioned that I need, so I may as well make one now to save editing the files in the source code to install.So, I'll make it just now:

Code:

[root@uilleann src]# ln -s linux-2.4.18-3 linux        

[root@uilleann src]# ls -alc

total 3

drwxr-xr-x    4 root    root          160 Jun 12 15:46 .

drwxr-xr-x  16 root    root          424 Jun  4 12:04 ..

lrwxrwxrwx    1 root    root          14 Jun 12 15:46 linux -> linux-2.4.18-3

lrwxrwxrwx    1 root    root          14 Jun  4 12:11 linux-2.4 -> linux-2.4.18-3

drwxr-xr-x  16 root    root          584 Jun  4 12:11 linux-2.4.18-3

drwxr-xr-x    7 root    root          168 Jun  4 12:08 redhat

[root@uilleann src]#

Ah, there it is, so that's done.

Next, did I install the compiler?

Code:

[root@uilleann src]# gcc -v          

Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/2.96/specs

gcc version 2.96 20000731 (Red Hat Linux 7.3 2.96-113)

[root@uilleann src]#

Yes, I have a compiler installed.

If you don't have those two things installed, you have to install them first off your install CD.

If they are installed, download the source and happy comiling. :tisk: Make sure you carefully read the README and INSTALL files after extracting and before compiling/installing. :study:

# Guides to software and installation and uninstallation
LNAG - How do I install a program I downloaded from the Internet?
Rute Guide's software explanation
You might want to check out CheckInstall to manage source code installations/uninstallation

# Configuring a pci modem
To configure a pci modem, open an x terminal and su - to the root account:

Code:

[phil@fancypiper phil]$ su -

Password: 

[root@fancypiper root]# cat /proc/pci

Look for your modem in the returned list. Look for something similar to mine:

Code:

  Bus  2, device  2, function  0:

    Communication controller: PCI device 151f:0000 (TOPIC SEMICONDUCTOR Corp) (rev 0).

      IRQ 5.

      I/O at 0xc400 [0xc407].

With this info, I use the setserial command:

Code:

[root@fancypiper root]# setserial /dev/ttyS2 irq 5 port 0xc400 uart 16550a

Then I test the modem with the internet connection wizard and it works. I edit /etc/rc.d/rc.local and enter the setserial command:

Code:

[root@fancypiper root]# pico -w /etc/rc.d/rc.local

My file for an example

Code:

#!/bin/sh

# Redhat /etc/rc.d/rc.local file

# This script will be executed *after* all the other init scripts.

# You can put your own initialization stuff in here if you don't

# want to do the full Sys V style init stuff.



touch /var/lock/subsys/local

# configure modem

setserial /dev/ttyS2 irq 5 port 0xc400 uart 16550a

Now, it remains configured after a reboot.

dark_light: Unfortunatelly Motorola doesn't support any more their modems, but you can get it to work only on a Red Hat 7.0 or 7.1 Linux or Mandrake 8.0
If you try it under a newer linux, you'll get the busy signal :(

The drivers are rpm.

I guess there is a way. But i need some suggestion.

What if i install the Kernel of RHlinux 7.1, edit my grub.config so that i could have the option of running kernel of 7.1 or 8.0 and when i need to connect the internet . i just enter the 7.1 kernel while for other stuff i use 8.0

i think it should work. but i haven't tried it yet so wish me luck

Ya it will work perfectly.. i run sm 56 like that

just rpm -ivh kernel-2.4.2 --force
edit ur grub.conf
and then install the drivers ..it will work fine

for more info visit
http://www.infologics.tk/linux.htm

It works?!?! It's a miracle!

I heard that it was using something that got thrown out of newer kernels... I guess I'm wrong!